For a highway bridge over a railroad, the governing regulation is Â§646.214(a)(2), The State transportation agency should follow its normal specifications, design standards, and guidelines for Federal-aid highway projects.
Pregnancy in dogs typically lasts 63 days (about nine weeks). The duration of a dog's pregnancy can fall in the range of 58 to 68 days.Though estrus (heat cycles) can vary from breed to breed, the normal gestation period falls within the same range for all dogs, regardless of breed.1  Most dogs will show no signs of pregnancy in the first several weeks.ow Long is a Dog's Pregnancy? Pregnancy in dogs typically lasts 63 days (about nine weeks). The duration of a dog's pregnancy can fall in the range of 58 to 68 days. Though estrus (heat cycles) can vary from breed to breed, the normal gestation period falls within the same range for all dogs, regardless of breed.
Whelping. The average canine gestation period is approximately 63 days, with most canines giving birth between day 58 and 68 of pregnancy. Observe your Labrador carefully for signs of impending labor as her due date approaches.Typical indicators are a sudden refusal of solid food and restless or anti-social behavior.helping. The average canine gestation period is approximately 63 days, with most canines giving birth between day 58 and 68 of pregnancy. Observe your Labrador carefully for signs of impending labor as her due date approaches.